STDU Viewer v1.6.375

Checker on 27 Apr 2015
  • 9MB (uncompressed)
  • Released on 27 Apr 2015
  • Suggested by joby_toss

STDU (Scientific and Technical Documentation Utility) Viewer is intended to combine a variety of document, text, and graphics format viewers into one. The program includes a modern tabbed interface, search, rotate, thumbnail view, etc. The program can also export pages to an image file, create bookmarks, and more.

Primarily supporting formats used (as the program name suggests) for scientific/technical docs (TIFF, PDF, DjVu, XPS, and JBIG2), the program also supports a variety of others including FB2, Comic Book Archive (CBR or CBZ), TCR, PalmDoc(PDB), MOBI, AZW, EPub, DCX and both standard and specialized image formats (PCX, WMF, EMF, PSD).

System Requirements: Win2K / WinXP / Vista / Win7
Writes settings to: Application folder
Dependencies: GDIPLUS.DLL only on Windows 2000
Stealth: ? Yes
Unicode support: Yes
License: Freeware for private or educational use -- commercial users must register.
How to extract: Download the ZIP package and extract to a folder of your choice. Launch STDUViewerApp.exe.
What's new?
  • Fix minor bugs.

13 comments on STDU Viewer  The Portable Freeware Collection Latest Entries Feed

MarkB 2010-12-28 12:23

A good PDF viewer with does not make heavy demands on the computer resources. Users can delete components (dll files) if they don't need the image, djvu, xps, jbig2 etc. viewing capabilities. Settings are written to an XML file in the program folder. If you want more tools (plus a payware ad) try PDF-XChange Viewer, else this program may be an excellent alternative.
Who needs Acrobat's bloated PDF viewer?

Transcontinental 2010-12-31 09:08

I entirely agree with MarkB's comment, in particular regarding PDF-XChange Viewer which is, IMO, the best pdf reader available. As for this STDU Viewer I had been a bit disapointed with the font rendering quality of pdf files, but that was in far previous version, no idea yet if it has been enhanced.

freakazoid 2011-01-01 03:02

Agreed, a nice alternative to PDF-Xchange Viewer, better than Sumatra.

freakazoid 2011-09-09 18:29

Had to defavorite this. Runs very slow on Windows 7. Sticking to PDF XChange Viewer.


outskirter 2011-12-08 04:00

I'm using STDUViewer on Windows 7 and find it very useful, especially for reading eBooks in TXT format, as the app keeps my place for me and reopens files exactly where I left off.

It renders PDF files and JPEG images very well, too. However, be careful with the built-in file browser if you browse a folder with a lot of images, because the app creates a large cache in the program folder, and this takes quite some time to complete. If you try to select something or change folders while the cache is being created, the app can crash. Using the file open dialogue instead solves the problem, and still gives you previews, so the browser isn't really necessary.

At first I had trouble assigning shortcut keys, but after seeing tproli's comment above about language files, I looked for them in my installation. The languages are actually dealt with in a single file, STDUViewerResource.xml, which contains Russian, English and French versions of the menus, etc. The configuration file, STDUViewerSetting.xml, came with no language selected (Language ID=""), and once I specified English by editing it to read Language ID="en", I was able to assign shortcuts.

This is now my default PDF reader, replacing PDF-XChange.


avoidz 2012-06-06 15:22

Not bad. Although SumatraPDF seems to render pages better (at least on my system) in a direct comparison.


Mark-B 2012-06-19 21:55

STDU Viewer is much more than a PDF viewer. It supports TIFF, PDF, DjVu, XPS, JBIG2, WWF document formats as well as FB2, TXT, Comic Book Archive (CBR or CBZ), TCR, PalmDoc(PDB), MOBI, AZW, EPub, DCX and image (BMP, PCX, JPEG, GIF, PNG, WMF, EMF, PSD) files. It's an excellent e-book reader.


Craunch 2013-10-03 11:06

I've just had an advertising bar appear occupying about 20% of the STDU window at the bottom of the window. I was using Installed STDU viewer version 1.6.284 unregistered. This suggests that the license is now Adware for private use, not freeware. Unfortunately I can't tell if this also affects educational use or the portable version; my guess is that it does.


I am Baas 2013-10-04 01:30

Confirmed. Thanks.

Changed license to Freeware (ad supported).


Specular 2014-07-22 08:38

Pretty decent PDF viewer, just the kind of lightweight app I was looking for. Unfortunately there is no 2-page face-to-face only layout view, as the 'face' layout it has scrolls down including any pages below. No idea why such an extra layout isn't included, as it's a better way to view books especially.


hamasaki 2015-04-28 03:10

Doesn`t work half the time, keeps saying the epub file is corrupt. Yet, they open in Sumatra and just about any other epub viewer with no issues.


Specular 2017-11-15 14:16

Anyone know security-wise if this is still worth using? It's now been more than two years without an update and I wonder what the risk to using it is, vs say Adobe Reader with its never-ending vulnerabilities.


webfork 2017-11-19 18:17

@Specular: I think if you're asking a question like that, it's probably wise to use an updated viewer. There have been a few PDF vulnerabilities over the past year, but I think you have to enable various Adobe-only extras that I don't think STDU has in it's program.


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